Boston Red Sox - Mike Napoli

J. Meric, Getty Images

The former Rangers slugger agreed to a three-year, $39 million contract with the Red Sox in December, but a degenerative hip condition -- the same one that ended Bo Jackson's career -- led to the sides actually signing a one-year, $5 million pact. That means Napoli comes with a bit of a risk, but he could end up being a bargain. (His deal does reportedly include some strong performance bonuses.) He's hit at least 20 homers in each of the past five seasons.

The former Rangers slugger agreed to a three-year, $39 million contract with the Red Sox in December, but a degenerative hip condition -- the same one that ended Bo Jackson's career -- led to the sides actually signing a one-year, $5 million pact. That means Napoli comes with a bit of a risk, but he could end up being a bargain. (His deal does reportedly include some strong performance bonuses.) He's hit at least 20 homers in each of the past five seasons. (J. Meric, Getty Images)

The former Rangers slugger agreed to a three-year, $39 million contract with the Red Sox in December, but a degenerative hip condition -- the same one that ended Bo Jackson's career -- led to the sides actually signing a one-year, $5 million pact. That means Napoli comes with a bit of a risk, but he could end up being a bargain. (His deal does reportedly include some strong performance bonuses.) He's hit at least 20 homers in each of the past five seasons.